8.3.1 Share definition Flag 8 letters. 3 words. 1 meaning...i love you used at the bottom of a text or email "catch ya later babes 8.3.1" 8.3.1 by ilainie January 15, 2008 0 0 Get merch Get the 8.3.1 mug. Buy Now — $32.95 See more merch